White, crystalline platelets or powder having a characteristic odor. One g dissolves in about 30 ml of water. It is soluble in dilute acids and alkali hydroxides in solutions. It is very slightly soluble in alcohol, and practically insoluble in ethyl ether.
Quality Standards：
FCCIV, EP4 and BP2001 etc.
Item
Specifications
EP4/BP2001
FCCIV
Appearance
White crystalline platelets or powder
Assay (C5H11NO2S),%(on dry matter)
99.0~101.0
98.5~101.5
Clarity of solution,
Clear
Clear
Transmittance, % (2.5%, 430ml)
≥98.0
- - -
pH Value(5% in water)
5.4~6.1
5.6~6.1
Heavy Metals (as Pb), %
≤0.001
≤0.002
Arsenic (as As), %
≤0.0001
≤0.0002
Sulfate (as SO4), %
≤0.02
≤0.02
Chloride (as Cl),%
≤0.02
- - -
Loss on drying, %
≤0.5
≤0.5
Residue on ignition, %
≤0.1
≤0.1
Ammonium as (as NH4), %
≤0.01
- - -
Other amino acid
Not detd.
Not detd.
Package and Transport：
Packed with a polyethylene bag for the inner layer and a Kraft paper board barrel for the outer layer, net weight 20kg/drum. Packaging may be arranged according to the requirement of the client.
Handle with care in order to avoid damaging the package. Protect them from sunshine and rain. Do not transport them together with poisonous or harmful goods. This product is a non-dangerous product and can be transported as a general chemical product.
Storage：
Store in cool, shaded, dry and clean places. Do not store it together with poisonous or harmful goods in order to avoid pollution. The limit of retained quality for two years.
